Low voltage, mechanics can't figure it out

Asked by Jul 21, 2017 at 11:23 PM about the 2007 Buick Lucerne CXL V6

Question type: Maintenance & Repair

My 2007 Lucerne is giving off 2.5 voltage and it should be 5. I bought a new
PCM (computer) still nothing. I have a brand new Interstate battery. Two
mechanics with 40 yrs each on GM's can't figure it out. They spoke to a GM
engineer, he can't figure it out. They went from tail lights to PCM inch by inch
checking all connections. I'm at a loss and they've had my car over 5 weeks.  
Anyone else have this issue?

2 Answers

79,715

Normal battery voltage is 12.5.

7,835

which sensor wiring?

Your Answer

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